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National Security Engineering

We are His Majesty’s Government Communications Centre (HMGCC), the engineering specialists at the heart of the UK's national security.

We work with the national security community, UK government, academia, private sector partners and international allies to bring engineering ingenuity to the national security mission, creating tools and technologies that drive us ahead and help to protect the nation.

Our latest news

Latest news from HMGCC

Latest round of HMGCC interns put cyber skills to the test


A new set of student interns has joined HMGCC for an eight-week stint, hoping to learn more about the complex world of cyber security.

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Inspiring engineers of the future in schools across the community


This academic year has been a busy one for HMGCC, packed with school visits and educational events aimed at promoting STEM subjects to students.

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Turing’s rebuilt Delilah machine goes on public display for first time [Video]


A rebuilt version of Alan Turing’s Delilah encryption system went on public display for the first time as part of a special event organised by his nephew.

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Join us

If you're passionate about creativity and problem solving, if you're a free thinker who wants to make a difference, we want to hear from you.

Building Services Engineer

Ref. 917


Estates Manager (Hard Services)

Ref. 918


Lead Platform Engineer

Ref. 920


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Creating hidden advantage

The tools and technologies we design and deliver solve uniquely difficult problems in novel and bespoke ways to create hidden advantage.

Life at HMGCC

We’re a community of people from different backgrounds, with different mindsets and different perspectives.

We’re brought together and united by a shared belief in free thinking, a dedication to our mission and a commitment to each other.

HMGCC Co-Creation

HMGCC Co-Creation is a partnership with the Defence Science and Technology Laboratory (Dstl), created to deliver a new, bold and innovative way of working collaboratively with the wider UK science and technology community.

Working with us

National security engineering is a mix of talents, skills and experience. From systems thinking to software specialism. From hardware and manufacturing to hands-on craft.

From scientific rigour and data analytics to lateral thought and creative intuition. Whether you're an experienced practitioner or just starting out, there's a place for you at HMGCC.